Only "issue" I had was the instructions forgot to add one important piece of info. It said to replace the diff oil with factory standard OEM stuff. Which in our case is the synth stuff. This is wrong. Once i had it installed there was a weird noise coming from the rear diff, kinda like if you were going in reverse in a manual trans at high speed. I called Eaton and asked why. The response was if you put anything but conventional diff oil with the TruTrac you will get this noise. No friction modifier either. So I took it back to the shop, had them drain it, steam clean it and put it back together with just 70w90 conventional diff oil and its been trouble free and quiet ever since.
The only weak spot I can see with your truck is the manual trans. The M5OD is ok but not really tough enough to take alot of abuse. After all its a Mazda tranny.
Whaddya mean I dont pay my bills?? Whydya think I'm broke!!
03 Lariat Crew 4x4 Line-x bedliner, Truxedo Lo-Pro QT Tonneau.
RIP [97 XL 4.2L V6]